AT32UC3L064-D3HES ATMEL [ATMEL Corporation], AT32UC3L064-D3HES Datasheet - Page 668

• Manufacturer Part Number: AT32UC3L064-D3HES
• Manufacturer: ATMEL [ATMEL Corporation]

28.7.4
Name:
Access Type:
Offset:
Reset Value:
• DIV: Clock Divider
• CHLEN: Charge Length
• SELEN: Settle Length
32099D–06/2010
31
23
15
7
The prescaler is used to ensure that the CLK_CAT clock is divided to around 1 MHz to produce the sampling clock.The
prescaler uses the following formula to generate the sampling clock:
Sampling clock = CLK_CAT / (2(DIV+1))
For the autonomous QTouch sensor, specifies how many sample clock cycles should be used for transferring charge to the
sense capacitor.
For the autonomous QTouch sensor, specifies how many sample clock cycles should be used for settling after charge transfer.
Autonomous Touch Configuration Register 0
30
22
14
6
ATCFG0
Read/Write
0x10
0x00000000
29
21
13
5
28
20
12
4
DIV[15:8]
DIV[7:0]
CHLEN
SELEN
27
19
11
3
26
18
10
2
AT32UC3L016/32/64
25
17
9
1
24
16
8
0
668